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Pablo Rocha
10,142 Pointswhy use AlertDialog to call the show() method?
The bottom two appear to both work the same. What would be the difference?
This is how Ben Jakuben did it in the video:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(getString(R.string.error_title));
builder.setMessage(getString(R.string.error_message));
builder.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
Removed the last two lines from the first code block and replaced with builder.show():
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(getString(R.string.error_title));
builder.setMessage(getString(R.string.error_message));
builder.setPositiveButton(android.R.string.ok, null);
builder.show();
1 Answer
Justin Horner
Treehouse Guest TeacherHello Jose,
The reason the second example causes the same result is because when you call the show method on the builder it actually creates a AlertDialog with the arguments of the builder and calls the show method on the dialog.
You can find this information here in the docs.
I hope this helps.
Pablo Rocha
10,142 PointsPablo Rocha
10,142 PointsMakes sense. Is there a difference in performance or efficiency?